Cod sursa(job #478597)

Utilizator netedu_andreiFII Andrei Netedu netedu_andrei Data 19 august 2010 12:34:12
Problema Operatii Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.23 kb
Raporteaza aceasta sursa 
#include <fstream.h>

long long x,y,s,n,i;
int main()
{
	ifstream f("operatii.in");
	ofstream g("operatii.out");
	f>>n;
	for(i=0;i<n;i++)
	{
		f>>x;
		s+=abs(x-y);
		y=x;
	}
	s+=x;
	g<<s/2<<'\n';
	return 0;
}